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Northwest Africa 14184
Basic information Name: Northwest Africa 14184
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14184
Observed fall: No
Year found: 2020
Country: (Northwest Africa)
Mass:help 728 g
Recommended:  L6    [explanation]

This is 1 of 11692 approved meteorites (plus 6 unapproved names) classified as L6.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 4 Sep 2021
Writeup from MB 110:

Northwest Africa 14184 (NWA 14184)

(Northwest Africa)

Purchased: 2020 Jul

Classification: Ordinary chondrite (L6)

History: Purchased by Ziyao Wang in July 2020 from a dealer in Guelmim, Morocco.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Shock-darkened, extensively recrystallized assemblage consisting predominantly of aggregates of very fine grained silicates with rare remnant chondrules and patches of opaque phases. Accessory phases include sodic plagioclase, troilite, altered kamacite, low-Ti chromite and minor iron phosphide. No phosphates were found.

Geochemistry: Olivine (Fa24.7±0.5, range Fa24.2-25.3, N = 5), low-Ca pyroxene (Fs19.3±0.4Wo2.9±0.5, range Fs19.0-20.0Wo2.2-3.4, N = 5), pigeonite (Fs8.3±1.3Wo20.0±0.0, range Fs7.3-9.2Wo20, N = 2), subcalcic augite (Fs15.3±0.1Wo29.1±0.4, range Fs15.2-15.4Wo28.8-29.3, N = 2), augite (Fs13.9Wo36.9).

Classification: Ordinary chondrite (L6).

Specimens: 21.8 g including one polished thin section at UWB; remainder with WangZ.

Data from:
  Table 0
  Line 0:
Place of purchase:Guelmim
Date:P 2020 Jul
Mass (g):728
Shock stage:S5
Weathering grade:W1
Fayalite (mol%):24.7±0.5
Ferrosilite (mol%):19.3±0.4
Wollastonite (mol%):2.9±0.5
Classifier:A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):21.8
Type spec location:UWB
Main mass:WangZ
Comments:Work name WZY-28; submitted by A. Irving
   and collections
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
WUSL: Washington Univ., One Brookings Drive, St. Louis, MO 63130, United States (institutional address; updated 17 Oct 2011)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
WangZ: Ziyao Wang, Hebei GEO University North Campus, Huai An dong road 127, Shijiazhuang, Hebei Province , China (private address; updated 25 Jun 2021)
References: Published in Meteoritical Bulletin, no. 110, in preparation (2021)
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     This is 1 of 7937 approved meteorites from (Northwest Africa) (plus 1960 unapproved names)

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